Hi there i am currently on roaccutane as its called in Scotland and have been on it for three months now.
My intial breakout was horrible not going to lie to you, but i would not put it down to the accutane solely as there was a few other factors in which i feel were also to blame maybe even more so than the accutane. I got put on steroids (Prednislone) to help with my initial breakout which worked wonders for it, even though i was only on them for a short length of time. If you do get a bad initial breakout i would consider asking your dermatologist about them but they do come with a number of scary side effects.The IB was severe in my case but i do feel it was completely worth it as my skin now is the best its been in years.
What i have read about lower doses is you have be on them for a longer length of time but they can still be effective in getting rid of acne for a number of years.This still depends on how your body reacts so it may or may not work for you.
Its not certain to say whether your skin/hair will be less oily for good but mines has certainly dried out and my hair only needs washed once or twice a week but i never had a problem with greasy hair.
Hope this helps, i would suggest you consult with your dermatologist your options.I know it may be at a cost cause i know its unusual to see a dermatologist for free in other parts of the world. Luckily i am from Scotland and we get everything including the medication for free which is amazing thanks to the NHS.